static int virCgroupSetValueStr(virCgroupPtr group,
int controller,
const char *key,
const char *value)
{
int rc = 0;
char *keypath = NULL;
rc = virCgroupPathOfController(group, controller, key, &keypath);
if (rc != 0)
return rc;
VIR_DEBUG("Set value '%s' to '%s'", keypath, value);
rc = virFileWriteStr(keypath, value, 0);
if (rc < 0) {
rc = -errno;
VIR_DEBUG("Failed to write value '%s': %m", value);
} else {
rc = 0;
}
VIR_FREE(keypath);
return rc;
}
/*
* Bridge parameters can be set via sysfs on newish kernels,
* or by ioctl on older kernels. Perhaps we could just use
* ioctl for every kernel, but its not clear what the long
* term lifespan of the ioctl interface is...
*/
static int virNetDevBridgeSet(const char *brname,
const char *paramname, /* sysfs param name */
unsigned long value, /* new value */
int fd, /* control socket */
struct ifreq *ifr) /* pre-filled bridge name */
{
char *path = NULL;
int ret = -1;
if (virAsprintf(&path, "%s/%s/bridge/%s", SYSFS_NET_DIR, brname, paramname) < 0) {
virReportOOMError();
return -1;
}
if (virFileExists(path)) {
char valuestr[INT_BUFSIZE_BOUND(value)];
snprintf(valuestr, sizeof(valuestr), "%lu", value);
if (virFileWriteStr(path, valuestr, 0) < 0) {
virReportSystemError(errno,
_("Unable to set bridge %s %s"), brname, paramname);
goto cleanup;
}
} else {
unsigned long paramid;
if (STREQ(paramname, "stp_state")) {
paramid = BRCTL_SET_BRIDGE_STP_STATE;
} else if (STREQ(paramname, "forward_delay")) {
paramid = BRCTL_SET_BRIDGE_FORWARD_DELAY;
} else {
virReportSystemError(EINVAL,
_("Unable to set bridge %s %s"), brname, paramname);
goto cleanup;
}
unsigned long args[] = { paramid, value, 0, 0 };
ifr->ifr_data = (char*)&args;
if (ioctl(fd, SIOCDEVPRIVATE, ifr) < 0) {
virReportSystemError(errno,
_("Unable to set bridge %s %s"), brname, paramname);
goto cleanup;
}
}
ret = 0;
cleanup:
VIR_FREE(path);
return ret;
}
static int
testPrepImages(void)
{
int ret = EXIT_FAILURE;
virCommandPtr cmd = NULL;
char *buf = NULL;
bool compat = false;
qemuimg = virFindFileInPath("kvm-img");
if (!qemuimg)
qemuimg = virFindFileInPath("qemu-img");
if (!qemuimg)
goto skip;
/* Clean up from any earlier failed tests */
virFileDeleteTree(datadir);
/* See if qemu-img supports '-o compat=xxx'. If so, we force the
* use of both v2 and v3 files; if not, it is v2 only but the test
* still works. */
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2",
"-o?", "/dev/null", NULL);
virCommandSetOutputBuffer(cmd, &buf);
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (strstr(buf, "compat "))
compat = true;
VIR_FREE(buf);
if (virAsprintf(&absraw, "%s/raw", datadir) < 0 ||
virAsprintf(&absqcow2, "%s/qcow2", datadir) < 0 ||
virAsprintf(&abswrap, "%s/wrap", datadir) < 0 ||
virAsprintf(&absqed, "%s/qed", datadir) < 0 ||
virAsprintf(&absdir, "%s/dir", datadir) < 0 ||
virAsprintf(&abslink2, "%s/sub/link2", datadir) < 0)
goto cleanup;
if (virFileMakePath(datadir "/sub") < 0) {
fprintf(stderr, "unable to create directory %s\n", datadir "/sub");
goto cleanup;
}
if (virFileMakePath(datadir "/dir") < 0) {
fprintf(stderr, "unable to create directory %s\n", datadir "/dir");
goto cleanup;
}
if (!(canondir = canonicalize_file_name(absdir))) {
virReportOOMError();
goto cleanup;
}
if (chdir(datadir) < 0) {
fprintf(stderr, "unable to test relative backing chains\n");
goto cleanup;
}
if (virAsprintf(&buf, "%1024d", 0) < 0 ||
virFileWriteStr("raw", buf, 0600) < 0) {
fprintf(stderr, "unable to create raw file\n");
goto cleanup;
}
if (!(canonraw = canonicalize_file_name(absraw))) {
virReportOOMError();
goto cleanup;
}
/* Create a qcow2 wrapping relative raw; later on, we modify its
* metadata to test other configurations */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=raw,backing_fmt=raw%s",
compat ? ",compat=0.10" : "");
virCommandAddArg(cmd, "qcow2");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
/* Make sure our later uses of 'qemu-img rebase' will work */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "rebase", "-u", "-f", "qcow2",
"-F", "raw", "-b", "raw", "qcow2", NULL);
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonqcow2 = canonicalize_file_name(absqcow2))) {
virReportOOMError();
goto cleanup;
}
/* Create a second qcow2 wrapping the first, to be sure that we
* can correctly avoid insecure probing. */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qcow2", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=qcow2%s",
absqcow2, compat ? ",compat=1.1" : "");
virCommandAddArg(cmd, "wrap");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonwrap = canonicalize_file_name(abswrap))) {
virReportOOMError();
goto cleanup;
}
/* Create a qed file. */
virCommandFree(cmd);
cmd = virCommandNewArgList(qemuimg, "create", "-f", "qed", NULL);
virCommandAddArgFormat(cmd, "-obacking_file=%s,backing_fmt=raw",
absraw);
virCommandAddArg(cmd, "qed");
if (virCommandRun(cmd, NULL) < 0)
goto skip;
if (!(canonqed = canonicalize_file_name(absqed))) {
virReportOOMError();
goto cleanup;
}
#ifdef HAVE_SYMLINK
/* Create some symlinks in a sub-directory. */
if (symlink("../qcow2", datadir "/sub/link1") < 0 ||
symlink("../wrap", datadir "/sub/link2") < 0) {
fprintf(stderr, "unable to create symlink");
goto cleanup;
}
#endif
ret = 0;
cleanup:
VIR_FREE(buf);
virCommandFree(cmd);
if (ret)
testCleanupImages();
return ret;
skip:
fputs("qemu-img is too old; skipping this test\n", stderr);
ret = EXIT_AM_SKIP;
goto cleanup;
}
int
virNumaSetPagePoolSize(int node,
unsigned int page_size,
unsigned long long page_count,
bool add)
{
int ret = -1;
char *nr_path = NULL, *nr_buf = NULL;
char *end;
unsigned long long nr_count;
if (page_size == virGetSystemPageSizeKB()) {
/* Special case as kernel handles system pages
* differently to huge pages. */
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("system pages pool can't be modified"));
goto cleanup;
}
if (virNumaGetHugePageInfoPath(&nr_path, node, page_size, "nr_hugepages") < 0)
goto cleanup;
/* Firstly check, if there's anything for us to do */
if (virFileReadAll(nr_path, 1024, &nr_buf) < 0)
goto cleanup;
if (virStrToLong_ull(nr_buf, &end, 10, &nr_count) < 0 ||
*end != '\n') {
virReportError(VIR_ERR_OPERATION_FAILED,
_("invalid number '%s' in '%s'"),
nr_buf, nr_path);
goto cleanup;
}
if (add) {
if (!page_count) {
VIR_DEBUG("Nothing left to do: add = true page_count = 0");
ret = 0;
goto cleanup;
}
page_count += nr_count;
} else {
if (nr_count == page_count) {
VIR_DEBUG("Nothing left to do: nr_count = page_count = %llu",
page_count);
ret = 0;
goto cleanup;
}
}
/* Okay, page pool adjustment must be done in two steps. In
* first we write the desired number into nr_hugepages file.
* Kernel then starts to allocate the pages (return from
* write should be postponed until the kernel is finished).
* However, kernel may have not been successful and reserved
* all the pages we wanted. So do the second read to check.
*/
VIR_FREE(nr_buf);
if (virAsprintf(&nr_buf, "%llu", page_count) < 0)
goto cleanup;
if (virFileWriteStr(nr_path, nr_buf, 0) < 0) {
virReportSystemError(errno,
_("Unable to write to: %s"), nr_path);
goto cleanup;
}
/* And now do the check. */
VIR_FREE(nr_buf);
if (virFileReadAll(nr_path, 1024, &nr_buf) < 0)
goto cleanup;
if (virStrToLong_ull(nr_buf, &end, 10, &nr_count) < 0 ||
*end != '\n') {
virReportError(VIR_ERR_OPERATION_FAILED,
_("invalid number '%s' in '%s'"),
nr_buf, nr_path);
goto cleanup;
}
if (nr_count != page_count) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("Unable to allocate %llu pages. Allocated only %llu"),
page_count, nr_count);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(nr_buf);
VIR_FREE(nr_path);
return ret;
}
/*
* qemuTPMEmulatorRunSetup
*
* @storagepath: path to the directory for TPM state
* @vmname: the name of the VM
* @vmuuid: the UUID of the VM
* @privileged: whether we are running in privileged mode
* @swtpm_user: The userid to switch to when setting up the TPM;
* typically this should be the uid of 'tss' or 'root'
* @swtpm_group: The group id to switch to
* @logfile: The file to write the log into; it must be writable
* for the user given by userid or 'tss'
* @tpmversion: The version of the TPM, either a TPM 1.2 or TPM 2
*
* Setup the external swtpm by creating endorsement key and
* certificates for it.
*/
static int
qemuTPMEmulatorRunSetup(const char *storagepath,
const char *vmname,
const unsigned char *vmuuid,
bool privileged,
uid_t swtpm_user,
gid_t swtpm_group,
const char *logfile,
const virDomainTPMVersion tpmversion)
{
virCommandPtr cmd = NULL;
int exitstatus;
int ret = -1;
char uuid[VIR_UUID_STRING_BUFLEN];
char *vmid = NULL;
if (!privileged && tpmversion == VIR_DOMAIN_TPM_VERSION_1_2)
return virFileWriteStr(logfile,
_("Did not create EK and certificates since "
"this requires privileged mode for a "
"TPM 1.2\n"), 0600);
cmd = virCommandNew(swtpm_setup);
if (!cmd)
goto cleanup;
virUUIDFormat(vmuuid, uuid);
if (virAsprintf(&vmid, "%s:%s", vmname, uuid) < 0)
goto cleanup;
virCommandSetUID(cmd, swtpm_user);
virCommandSetGID(cmd, swtpm_group);
switch (tpmversion) {
case VIR_DOMAIN_TPM_VERSION_1_2:
break;
case VIR_DOMAIN_TPM_VERSION_2_0:
virCommandAddArgList(cmd, "--tpm2", NULL);
break;
case VIR_DOMAIN_TPM_VERSION_DEFAULT:
case VIR_DOMAIN_TPM_VERSION_LAST:
break;
}
virCommandAddArgList(cmd,
"--tpm-state", storagepath,
"--vmid", vmid,
"--logfile", logfile,
"--createek",
"--create-ek-cert",
"--create-platform-cert",
"--lock-nvram",
"--not-overwrite",
NULL);
virCommandClearCaps(cmd);
if (virCommandRun(cmd, &exitstatus) < 0 || exitstatus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not run '%s'. exitstatus: %d; "
"Check error log '%s' for details."),
swtpm_setup, exitstatus, logfile);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(vmid);
virCommandFree(cmd);
return ret;
}
static virDomainPtr
vmwareDomainCreateXML(virConnectPtr conn, const char *xml,
unsigned int flags)
{
struct vmware_driver *driver = conn->privateData;
virDomainDefPtr vmdef = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
char *vmx = NULL;
char *vmxPath = NULL;
vmwareDomainPtr pDomain = NULL;
virVMXContext ctx;
virCheckFlags(0, NULL);
ctx.formatFileName = vmwareCopyVMXFileName;
vmwareDriverLock(driver);
if ((vmdef = virDomainDefParseString(driver->caps, xml,
1 << VIR_DOMAIN_VIRT_VMWARE,
VIR_DOMAIN_XML_INACTIVE)) == NULL)
goto cleanup;
/* generate vmx file */
vmx = virVMXFormatConfig(&ctx, driver->caps, vmdef, 7);
if (vmx == NULL)
goto cleanup;
if (vmwareVmxPath(vmdef, &vmxPath) < 0)
goto cleanup;
/* create vmx file */
if (virFileWriteStr(vmxPath, vmx, S_IRUSR|S_IWUSR) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to write vmx file '%s'"), vmxPath);
goto cleanup;
}
/* assign def */
if (!(vm = virDomainObjListAdd(driver->domains,
driver->caps,
vmdef,
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
pDomain = vm->privateData;
pDomain->vmxPath = strdup(vmxPath);
vmwareDomainConfigDisplay(pDomain, vmdef);
vmdef = NULL;
if (vmwareStartVM(driver, vm) < 0) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
virDomainDefFree(vmdef);
VIR_FREE(vmx);
VIR_FREE(vmxPath);
if (vm)
virObjectUnlock(vm);
vmwareDriverUnlock(driver);
return dom;
}
static virDomainPtr
vmwareDomainCreateXML(virConnectPtr conn, const char *xml,
unsigned int flags ATTRIBUTE_UNUSED)
{
struct vmware_driver *driver = conn->privateData;
virDomainDefPtr vmdef = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
char *vmx = NULL;
char *vmxPath = NULL;
vmwareDomainPtr pDomain = NULL;
virVMXContext ctx;
ctx.formatFileName = vmwareCopyVMXFileName;
vmwareDriverLock(driver);
if ((vmdef = virDomainDefParseString(driver->caps, xml,
VIR_DOMAIN_XML_INACTIVE)) == NULL)
goto cleanup;
if (virDomainObjIsDuplicate(&driver->domains, vmdef, 1) < 0)
goto cleanup;
/* generate vmx file */
vmx = virVMXFormatConfig(&ctx, driver->caps, vmdef, 7);
if (vmx == NULL)
goto cleanup;
if (vmwareVmxPath(vmdef, &vmxPath) < 0)
goto cleanup;
/* create vmx file */
if (virFileWriteStr(vmxPath, vmx, S_IRUSR|S_IWUSR) < 0) {
vmwareError(VIR_ERR_INTERNAL_ERROR,
_("Failed to write vmx file '%s'"), vmxPath);
goto cleanup;
}
/* assign def */
if (!(vm = virDomainAssignDef(driver->caps,
&driver->domains, vmdef, false)))
goto cleanup;
pDomain = vm->privateData;
pDomain->vmxPath = strdup(vmxPath);
vmwareDomainConfigDisplay(pDomain, vmdef);
vmdef = NULL;
if (vmwareStartVM(driver, vm) < 0) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
virDomainDefFree(vmdef);
VIR_FREE(vmx);
VIR_FREE(vmxPath);
if(vm)
virDomainObjUnlock(vm);
vmwareDriverUnlock(driver);
return dom;
}
static virDomainPtr
vmwareDomainDefineXML(virConnectPtr conn, const char *xml)
{
struct vmware_driver *driver = conn->privateData;
virDomainDefPtr vmdef = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
char *vmx = NULL;
char *directoryName = NULL;
char *fileName = NULL;
char *vmxPath = NULL;
vmwareDomainPtr pDomain = NULL;
virVMXContext ctx;
ctx.formatFileName = vmwareCopyVMXFileName;
vmwareDriverLock(driver);
if ((vmdef = virDomainDefParseString(driver->caps, xml,
1 << VIR_DOMAIN_VIRT_VMWARE,
VIR_DOMAIN_XML_INACTIVE)) == NULL)
goto cleanup;
if (virDomainObjIsDuplicate(&driver->domains, vmdef, 1) < 0)
goto cleanup;
/* generate vmx file */
vmx = virVMXFormatConfig(&ctx, driver->caps, vmdef, 7);
if (vmx == NULL)
goto cleanup;
if (vmwareVmxPath(vmdef, &vmxPath) < 0)
goto cleanup;
/* create vmx file */
if (virFileWriteStr(vmxPath, vmx, S_IRUSR|S_IWUSR) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to write vmx file '%s'"), vmxPath);
goto cleanup;
}
/* assign def */
if (!(vm = virDomainAssignDef(driver->caps,
&driver->domains, vmdef, false)))
goto cleanup;
pDomain = vm->privateData;
if ((pDomain->vmxPath = strdup(vmxPath)) == NULL) {
virReportOOMError();
goto cleanup;
}
vmwareDomainConfigDisplay(pDomain, vmdef);
vmdef = NULL;
vm->persistent = 1;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = -1;
cleanup:
virDomainDefFree(vmdef);
VIR_FREE(vmx);
VIR_FREE(directoryName);
VIR_FREE(fileName);
VIR_FREE(vmxPath);
if (vm)
virDomainObjUnlock(vm);
vmwareDriverUnlock(driver);
return dom;
}
static int
nodeDeviceVportCreateDelete(const int parent_host,
const char *wwpn,
const char *wwnn,
int operation)
{
int retval = 0;
char *operation_path = NULL, *vport_name = NULL;
const char *operation_file = NULL;
struct stat st;
switch (operation) {
case VPORT_CREATE:
operation_file = LINUX_SYSFS_VPORT_CREATE_POSTFIX;
break;
case VPORT_DELETE:
operation_file = LINUX_SYSFS_VPORT_DELETE_POSTFIX;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Invalid vport operation (%d)"), operation);
retval = -1;
goto cleanup;
break;
}
if (virAsprintf(&operation_path,
"%shost%d%s",
LINUX_SYSFS_FC_HOST_PREFIX,
parent_host,
operation_file) < 0) {
virReportOOMError();
retval = -1;
goto cleanup;
}
if (stat(operation_path, &st) != 0) {
VIR_FREE(operation_path);
if (virAsprintf(&operation_path,
"%shost%d%s",
LINUX_SYSFS_SCSI_HOST_PREFIX,
parent_host,
operation_file) < 0) {
virReportOOMError();
retval = -1;
goto cleanup;
}
if (stat(operation_path, &st) != 0) {
VIR_ERROR(_("No vport operation path found for host%d"),
parent_host);
retval = -1;
goto cleanup;
}
}
VIR_DEBUG("Vport operation path is '%s'", operation_path);
if (virAsprintf(&vport_name,
"%s:%s",
wwpn,
wwnn) < 0) {
virReportOOMError();
retval = -1;
goto cleanup;
}
if (virFileWriteStr(operation_path, vport_name, 0) == -1) {
virReportSystemError(errno,
_("Write of '%s' to '%s' during "
"vport create/delete failed"),
vport_name, operation_path);
retval = -1;
}
cleanup:
VIR_FREE(vport_name);
VIR_FREE(operation_path);
VIR_DEBUG("%s", _("Vport operation complete"));
return retval;
}
